Even in a 24/7 world, there's still noon to 3 p.m. The business lunch may be trimmer, its pace faster, and three martinis rare. But a lot of what the IRS terms "the active conduct of business," with half the expense deductible, continues at tables large and small across post-recession Long Island. Here's a sampler of restaurants in five Nassau-Suffolk hubs, where you can seal the deal....

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